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公开(公告)号：EP0176540B1
公开(公告)日：1988-10-26
申请号：EP85901507.5
申请日：1985-04-01
CPC分类号： G06F3/0414
摘要： A cathode ray tube is provided on the exterior of its screen (12) with a layer (20) of a polymeric piezoelectric material, e.g. polyvinylidene fluoride. Localized pressure (or heating) on the layer (20) creates a charged region (28) which produces alteration of the beam current when the beam scans over said region. This alteration is detected, as by sensing loop (24), to produce a data input.
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公开(公告)号：EP0176539B1
公开(公告)日：1988-08-31
申请号：EP85901506.7
申请日：1985-04-01
IPC分类号： G01P9/04
CPC分类号： G01C19/56 , Y10S73/04 , Y10S310/80
摘要： The sensor has two sheets (18, 20) of polarized polymeric piezoelectric material secured together with their main uniaxial mode aligned with axis (16). These are connected to an electric oscillator to induce mechanical oscillation of the assembly (10). A third sheet (22) of like material is secured to the sheets (18, 20) but has its main uniaxial mode transverse to the axis (16). Twisting of the assembly due to rotational acceleration causes substantial alteration of the voltage induced in the third sheet (22), the voltage being proportional to the rate of rotational acceleration.
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公开(公告)号：EP0248528A3
公开(公告)日：1989-03-15
申请号：EP87303858.2
申请日：1987-04-30
发明人： Strachan, John Scott
CPC分类号： G10H3/181 , G10H3/146 , G10H2220/525
摘要： An elongate film (32) of polyvinylidene fluoride or other polymeric piezoelectric material is provided on one face with an electrode (34) extending along approximately one-half the length of the film, and on the other face with a metallised screen layer (36) extending along the whole length. The film (32) is folded about the line M-M with the screen layer (36) to the exterior and inserted in a pocket-like cover (28) for securement to the instrument, for example by adhesive tape.
摘要翻译： 在一个面上设置有聚偏二氟乙烯或其它聚合物压电材料的细长膜（32），其中电极（34）沿膜的长度的大约一半延伸，而在另一个面上具有金属化屏幕层（36） 延长整个长度。 膜（32）围绕具有屏幕层（36）的线M-M折叠到外部，并且插入袋状盖（28）中，以固定到仪器，例如通过胶带。
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公开(公告)号：EP0248528A2
公开(公告)日：1987-12-09
申请号：EP87303858.2
申请日：1987-04-30
发明人： Strachan, John Scott
CPC分类号： G10H3/181 , G10H3/146 , G10H2220/525
摘要： An elongate film (32) of polyvinylidene fluoride or other polymeric piezoelectric material is provided on one face with an electrode (34) extending along approximately one-half the length of the film, and on the other face with a metallised screen layer (36) extending along the whole length. The film (32) is folded about the line M-M with the screen layer (36) to the exterior and inserted in a pocket-like cover (28) for securement to the instrument, for example by adhesive tape.
摘要翻译： 在一个面上设置有聚偏二氟乙烯或其它聚合物压电材料的细长膜（32），其中电极（34）沿膜的长度的大约一半延伸，而在另一个面上具有金属化屏幕层（36） 延长整个长度。 膜（32）围绕具有屏幕层（36）的线M-M折叠到外部，并且插入袋状盖（28）中，以固定到仪器，例如通过胶带。
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公开(公告)号：EP0238187A2
公开(公告)日：1987-09-23
申请号：EP87301097.9
申请日：1987-02-09
IPC分类号： G10H3/14
CPC分类号： G10H3/146 , G10H2220/531 , G10H2220/535 , G10H2230/271 , G10H2230/321
摘要： The microphone comprises one or more strips (30) of a piezoelectric sheet material secured to the surface of the cymbal (10), each strip having metallised electrodes on its opposed surfaces. The strips are disposed radially of the cymbal. The preferred material is polyvinylidene fluoride in polarized form, the axis of the main uniaxial mode of the material being transverse to the longitudinal axes of the strips.
In an alternative embodiment (Fig. 1), a single radial strip (16) is used in combination with a circumferential strip (18).摘要翻译： 与钹，锣或其他共振式打击乐器一起使用的麦克风具有至少一个固定在乐器表面（10）上的带状带（30），带状轴线位于乐器的轴线上，电极位于条主表面上。 有pref。 6-12个带以不规则的角度间隔位于仪器表面周围。 每个条都是pref。 的偏振聚偏氟乙烯和3.5mm宽，在外端具有周向延伸部分以形成L形传感器。 可以存在沿着仪器的外部周向周向延伸的长条，并且其长度近似于在外部部分周向传播的整个波长的波长。
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公开(公告)号：EP0267737A3
公开(公告)日：1989-11-29
申请号：EP87309790.1
申请日：1987-11-05
发明人： Strachan, John Scott
CPC分类号： G01N29/045 , G01L1/16 , G01L5/0052 , G01N33/025 , G01N2291/02827
摘要： The apparatus makes use of a transducer (10) comprising a polymeric piezoelectric film (12) having electrodes (20, 22) and secured by adhesive (14) to a rigid plate (16) which in turn is mounted on a resilient, yielding support (18). The object to be assessed (26) is caused to impact on the transducer (10) to cause an electrical output from the film (12). The rigid plate (16) is chosen to have a mass which is small in relation to that of the object (26) and of a material which is non-resonant under the impact, and the support (18) is such that the film (12), the plate (16) and the object (26) move in contact during the impact. This arrangement has the result that the output signal from the film (12) represents the resonance of the object due to the impact, which can be used as a measure of the firmness of the object. The invention is particularly applicable to measuring the ripeness of fruit.
摘要翻译： 该设备利用包括具有电极（20,22）的聚合物压电薄膜（12）并由粘合剂（14）固定到刚性板（16）的换能器（10），刚性板（16）又安装在弹性的屈服支撑 （18）。 使被评估物体（26）对换能器（10）产生影响，以引起来自胶片（12）的电输出。 刚性板（16）被选择为具有相对于物体（26）小的质量和在冲击下非共振的材料，并且支撑件（18）使得膜（ 12）中，板（16）和物体（26）在冲击期间接触。 这种布置的结果是，来自胶片（12）的输出信号表示由于冲击而对象的共振，这可以用作对象的坚固度的量度。 本发明特别适用于测量水果的成熟度。
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公开(公告)号：EP0267738A3
公开(公告)日：1989-08-23
申请号：EP87309791.9
申请日：1987-11-05
IPC分类号： G01B11/00
CPC分类号： G01B11/28 , G01B11/00 , G01B11/2433
摘要： An object (22) is assessed in relation to a factor related to its silhouette (for example area) by being positioned adjacent a sheet (10) of a material having pyroelectric properties, such as polyvinylidene fluoride. The object (22) and sheet (10) are exposed to a source of radiant heat, such as a flash tube (16) to induce an electric chsrge in the sheet (10) of an amplitude related to the area of the sheet (10) obscured by the object (22). Other embodiments are described suitable for the assessment of other factors, such as shape and orientation.
摘要翻译： 通过与具有热电性质的材料（例如聚偏二氟乙烯）的片材（10）相邻定位，关于与其轮廓（例如面积）有关的因素来评估物体（22）。 物体（22）和片材（10）暴露于诸如闪光管（16）的辐射源，以引起片材（10）中与片材（10）的面积相关的振幅 ）被对象（22）遮蔽。 描述适合于评估诸如形状和取向的其他因素的其它实施例。
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公开(公告)号：EP0238187A3
公开(公告)日：1989-03-15
申请号：EP87301097.9
申请日：1987-02-09
IPC分类号： G10H3/14
CPC分类号： G10H3/146 , G10H2220/531 , G10H2220/535 , G10H2230/271 , G10H2230/321
摘要： The microphone comprises one or more strips (30) of a piezoelectric sheet material secured to the surface of the cymbal (10), each strip having metallised electrodes on its opposed surfaces. The strips are disposed radially of the cymbal. The preferred material is polyvinylidene fluoride in polarized form, the axis of the main uniaxial mode of the material being transverse to the longitudinal axes of the strips. In an alternative embodiment (Fig. 1), a single radial strip (16) is used in combination with a circumferential strip (18).
摘要翻译： 与钹，锣或其他共振式打击乐器一起使用的麦克风具有至少一个固定在乐器表面（10）上的带状带（30），带状轴线位于乐器的轴线上，电极位于条主表面上。 有pref。 6-12个带以不规则的角度间隔位于仪器表面周围。 每个条都是pref。 的偏振聚偏氟乙烯和3.5mm宽，在外端具有周向延伸部分以形成L形传感器。 可以存在沿着仪器的外部周向周向延伸的长条，并且其长度近似于在外部部分周向传播的整个波长的波长。
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9.发明公开Method and apparatus for assessing discrete objects 失效Verfahren und Vorrichtung zur Erfassung diskreter Objekte。
公开(公告)号：EP0267738A2
公开(公告)日：1988-05-18
申请号：EP87309791.9
申请日：1987-11-05
IPC分类号： G01B11/00
CPC分类号： G01B11/28 , G01B11/00 , G01B11/2433
摘要： An object (22) is assessed in relation to a factor related to its silhouette (for example area) by being positioned adjacent a sheet (10) of a material having pyroelectric properties, such as polyvinylidene fluoride. The object (22) and sheet (10) are exposed to a source of radiant heat, such as a flash tube (16) to induce an electric chsrge in the sheet (10) of an amplitude related to the area of the sheet (10) obscured by the object (22). Other embodiments are described suitable for the assessment of other factors, such as shape and orientation.
摘要翻译： 通过与具有热电性质的材料（例如聚偏二氟乙烯）的片材（10）相邻定位，关于与其轮廓（例如面积）有关的因素来评估物体（22）。 物体（22）和片材（10）暴露于诸如闪光管（16）的辐射源，以引起片材（10）中与片材（10）的面积相关的振幅 ）被对象（22）遮蔽。 描述适合于评估诸如形状和取向的其他因素的其它实施例。
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公开(公告)号：EP0267737A2
公开(公告)日：1988-05-18
申请号：EP87309790.1
申请日：1987-11-05
发明人： Strachan, John Scott
CPC分类号： G01N29/045 , G01L1/16 , G01L5/0052 , G01N33/025 , G01N2291/02827
摘要： The apparatus makes use of a transducer (10) comprising a polymeric piezoelectric film (12) having electrodes (20, 22) and secured by adhesive (14) to a rigid plate (16) which in turn is mounted on a resilient, yielding support (18). The object to be assessed (26) is caused to impact on the transducer (10) to cause an electrical output from the film (12). The rigid plate (16) is chosen to have a mass which is small in relation to that of the object (26) and of a material which is non-resonant under the impact, and the support (18) is such that the film (12), the plate (16) and the object (26) move in contact during the impact. This arrangement has the result that the output signal from the film (12) represents the resonance of the object due to the impact, which can be used as a measure of the firmness of the object. The invention is particularly applicable to measuring the ripeness of fruit.
摘要翻译： 该设备利用包括具有电极（20,22）的聚合物压电薄膜（12）并由粘合剂（14）固定到刚性板（16）的换能器（10），刚性板（16）又安装在弹性的屈服支撑 （18）。 使被评估物体（26）对换能器（10）产生影响，以引起来自胶片（12）的电输出。 刚性板（16）被选择为具有相对于物体（26）小的质量和在冲击下非共振的材料，并且支撑件（18）使得膜（ 12）中，板（16）和物体（26）在冲击期间接触。 这种布置的结果是，来自胶片（12）的输出信号表示由于冲击而对象的共振，这可以用作对象的坚固度的量度。 本发明特别适用于测量水果的成熟度。
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